Machine-room-less elevator control cabinet

Abstract

The invention discloses a machine-room-less elevator control cabinet in the technical field of control cabinets, which comprises a cabinet body and a cabinet door for opening and closing the cabinet body, and the cabinet body is provided with an air outlet; a plurality of exhaust pipes which are communicated with one another are uniformly distributed on one side, facing the cabinet body, of the cabinet door, the exhaust pipes are sequentially arranged from top to bottom along the cabinet door, and exhaust holes are uniformly distributed in the exhaust pipes; and one exhaust pipe is communicated with an air blower. According to the elevator control cabinet without the machine room, wind power can be more evenly dispersed to all parts in the cabinet body, and comprehensive heat dissipation of electrical components is achieved.

Description

Technical Field

[0001] The invention belongs to the technical field of control cabinets, and in particular relates to a machine room-less elevator control cabinet. Background Art

[0002] A machine roomless elevator is an elevator system that does not require a traditional machine room. This design can save building space and reduce costs, because traditional elevators usually require a machine room on the top floor to accommodate the elevator's drive machinery, control cabinet and other equipment. In a machine roomless elevator, these components are redesigned to fit a more compact space. The machine roomless elevator control cabinet is usually integrated and may be installed at the top of the hoistway or somewhere inside the elevator hoistway, such as in a dedicated compartment on the side wall of the hoistway. This design not only saves space, but also facilitates maintenance and repair.

[0003] The machine room-less elevator control cabinet generally includes a cabinet body with an opening at one end and a cabinet door hinged at the open end of the cabinet body. When the machine room-less elevator control cabinet is in use, a large number of electrical components such as controllers, frequency converters, contactors, wiring terminals, air switches, transformers, etc. need to be integrated in the cabinet body. During the use of the machine room-less elevator control cabinet, due to the heat generated by a large number of electrical components, in order to ensure the normal operation of the electrical components or extend their service life, it is necessary to dissipate the heat of the electrical components in the machine room-less elevator control cabinet. At present, the main method is to dissipate the heat of the electrical components by setting a heat dissipation port near the top of the cabinet body, and then setting a fan on the cabinet door or cabinet body. However, due to the low wind force of the fan, only some of the electrical components on the front can be well dissipated, and the heat dissipation effect of the electrical components that are not facing the fan is poor. If a blower is used, although it can provide greater wind force, due to the excessive wind force concentrated on the electrical components, the electrical components are easily damaged due to long-term action; and the small wind force is similar to the effect of the fan, and it will bring higher use and maintenance costs. In addition, the air outlet of the blower is also relatively concentrated, and it is difficult to completely cover the electrical components in the cabinet body. Summary of the invention

[0004] The present invention aims to provide a machine room-less elevator control cabinet to improve the comprehensiveness of heat dissipation of electrical components in the cabinet.

[0005] A machine room-less elevator control cabinet in the present solution comprises a cabinet body and a cabinet door for opening and closing the cabinet body, wherein an exhaust port is arranged on the cabinet body; a plurality of exhaust ducts interconnected with each other are evenly distributed on the side of the cabinet door facing the cabinet body, the plurality of exhaust ducts are arranged in sequence from top to bottom along the cabinet door, and exhaust holes are evenly distributed on the exhaust ducts; one of the exhaust ducts is connected to a blower.

[0006] Beneficial effects of this solution: This solution can disperse the wind more evenly to various parts of the cabinet through multiple exhaust ducts arranged from top to bottom and exhaust holes evenly distributed on the exhaust ducts, thereby achieving comprehensive heat dissipation of electrical components. Compared with the traditional fan heat dissipation method, this method can more effectively reduce the temperature of electrical components, thereby improving their working performance and extending their service life. At the same time, using a blower to provide wind can provide a greater heat dissipation effect than a single fan, and the decentralized design of the exhaust duct avoids potential damage caused by excessive wind blowing directly to the electrical components. In addition, since the exhaust duct is arranged on the side of the cabinet door facing the cabinet, the machine room-less elevator control cabinet does not need to expand the space, thereby avoiding its large size and being unable to meet the installation requirements.

[0007] Furthermore, a vertical air duct and a connecting plate are provided on the side of the cabinet door facing the cabinet body, and the air duct is connected to the blower; both ends of the multiple exhaust ducts are respectively rotatably connected to the air duct and the connecting plate, and the exhaust duct is connected to the air duct, and the exhaust duct is connected to a power device that drives the exhaust duct to rotate. By adding a vertical air duct and a connecting plate, and rotatably connecting both ends of the multiple exhaust ducts to the air duct and the connecting plate, dynamic adjustment of the exhaust duct is achieved. The exhaust duct can adjust its angle and position as needed, so as to more flexibly control the direction and intensity of the wind force, and then supply wind force corresponding to the heat generated by different electrical components in the cabinet.

[0008] Furthermore, the power device includes a first electric motor and a driving gear installed on the first electric motor, and the ends of the multiple exhaust pipes away from the air guide pipe are connected to driven gears, the adjacent driven gears are meshed, and the driving gear is meshed with one of the driven gears. Through the arrangement of the first electric motor, the driving gear and the driven gear, the mechanized rotation control of the exhaust pipe is realized. When the first electric motor is working, it drives the driving gear to rotate, and the driving gear drives the driven gear meshed with it to rotate, which can drive all the driven gears and the exhaust pipes connected thereto to rotate synchronously in turn, and can more flexibly adjust the direction and intensity of the wind force, so as to better adapt to different working environments and usage requirements. And the first electric motor can realize automatic control and adjustment of the rotation of the exhaust pipe by connecting with the elevator control system, further improving the intelligence level of the control cabinet.

[0009] Furthermore, a temperature sensor is provided in the cabinet. The temperature sensor can sense the temperature change in the cabinet in real time and feed back this information to the elevator control system. The elevator control system can accurately adjust the speed of the blower or the angle of the exhaust pipe according to the real-time temperature data, thereby achieving more efficient heat dissipation control. At the same time, when the temperature is low, the elevator control system can reduce the blower power or reduce the running time, thereby minimizing energy consumption while meeting the heat dissipation requirements.

[0010] Furthermore, a cavity is provided in the connecting plate, and a connecting pipe is connected to the end of the exhaust duct away from the air duct. The connecting pipe is rotatably connected to the connecting plate and extends into the cavity. The driven gear is installed on the connecting pipe, and a sealing block is provided for every two connecting pipes in the cavity; a sealing sheet is provided for every odd number of exhaust ducts in the air duct, and multiple sealing sheets are connected by the same traction line. A second electric motor is provided on the top of the cabinet door, and a winch is provided on the output shaft of the second electric motor, and the traction rope is fixed on the winch; the blower is connected to the top of the air duct. After the machine room-less elevator control cabinet has been used for a period of time, dust will accumulate in the exhaust duct and the air duct. Through the setting of sealing blocks, sealing sheets and lifting devices, after the machine room-less elevator control cabinet has been used for a period of time, the first electric motor drives the exhaust duct to rotate 180°, so that the exhaust hole faces the cabinet door and is blocked; and a sealing block is provided for every two connecting pipes in the cavity; a sealing sheet is provided for every odd exhaust duct in the air duct, so that the wind flow generated by the blower can only pass through the air duct, the first exhaust duct, the second exhaust duct, the air duct, the third exhaust duct, the fourth exhaust duct, the air duct... in this order, thereby greatly improving the wind force in the exhaust duct, which helps to remove dust from the exhaust duct and the air duct. After the dust is removed, the traction rope is released by the second electric motor, and the sealing sheet is blown downward and gathered together under the action of wind force, thereby ensuring that the subsequent wind flow can enter the exhaust duct synchronously from the air duct.

[0011] Furthermore, a dust exhaust pipe is connected to the bottom of the air duct, and the dust exhaust pipe extends to the outside of the cabinet door. Through the setting of the dust exhaust pipe, when the air duct and the exhaust pipe are subjected to dust exhaust treatment, the dust can be discharged to the outside of the machine room-less elevator control cabinet through the dust exhaust pipe to avoid contamination of the cabinet body. When the heat is dissipated normally, the sealing sheet accumulates at the bottom of the air duct, thereby blocking the dust exhaust pipe and preventing the airflow from flowing out of the dust exhaust pipe.

[0012] Furthermore, a partition is provided in the cavity, the partition is located between the sealing block and the exhaust pipe, and the connecting pipe passes through the partition and is rotatably connected thereto. The partition is provided to prevent dust from accumulating on the driven gear.

[0013] Furthermore, a rubber pad is provided on the side of the cabinet door facing the cabinet body. Through the provision of the rubber pad, when the exhaust hole rotates to the side of the rubber pad, the rubber pad can better block the exhaust hole. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a front view of a machine room-less elevator control cabinet according to Embodiment 1 of the present invention;

[0015] Figure 2 for Figure 1 Rear view after removing the cabinet;

[0016] Figure 3This is a front view of a machine room-less elevator control cabinet according to Embodiment 2 of the present invention;

[0017] Figure 4 for Figure 3 Rear view after removing the cabinet;

[0018] Figure 5 This is a front view of a machine room-less elevator control cabinet according to Embodiment 3 of the present invention;

[0019] Figure 6 for Figure 5 Rear view with the cabinet removed. DETAILED DESCRIPTION

[0020] The following is further described in detail through specific implementation methods:

[0021] The figure marks in the drawings of the specification include: cabinet door 1, handle 2, first installation box 3, rubber pad 4, connecting plate 5, exhaust duct 6, exhaust hole 7, air guide duct 8, second installation box 9, cavity 10, connecting pipe 11, driven gear 12, dust exhaust pipe 13, third installation box 14, winch 15, second electric motor 16, sealing block 17, partition 18, air inlet 19, traction rope 20, sealing sheet 21.

[0022] Embodiment 1 is basically as attached Figures 1-2 As shown: a machine room-less elevator control cabinet includes a cabinet body and a cabinet door 1 for opening and closing the cabinet body, the cabinet body is provided with an exhaust outlet, the exhaust outlet is arranged on a side wall of the cabinet body facing the cabinet door 1 and close to the top, the cabinet door 1 is provided with a handle 2 and a first installation box 3 on the side away from the cabinet body, the top of the cabinet door 1 is provided with an air inlet 19 passing through it, a blower is installed in the installation box, and the air outlet end of the blower is connected to the air inlet 19.

[0023] Twenty exhaust ducts 6 that are interconnected are evenly distributed on the side of the cabinet door 1 facing the cabinet body. The twenty exhaust ducts 6 are arranged horizontally from top to bottom along the cabinet door 1, and seven exhaust holes 7 are evenly distributed on the exhaust duct 6; more specifically: a vertically arranged air guide duct 8 and a connecting plate 5 are welded on the side of the cabinet door 1 facing the cabinet body, and the air guide duct 8 is connected to the air inlet 19; both ends of the twelve exhaust ducts 6 are respectively rotatably connected to the air guide duct 8 and the connecting plate 5, and the exhaust duct 6 is connected to the air guide duct 8.

[0024] Embodiment 2 is basically as attached Figures 3-4 As shown, the difference between it and embodiment 1 is that: a second installation box 9 is installed on the side of the cabinet door 1 away from the cabinet body, a first electric motor is installed in the second installation box 9, a driving gear is installed on the output shaft of the first electric motor, and a notch for the gear to pass through is provided on the cabinet door 1. A rubber pad 4 is bonded to the side of the cabinet door 1 close to the cabinet body, and the rubber pad 4 helps to reduce the noise when the exhaust pipe 6 rotates.

[0025] A cavity 10 is provided in the connecting plate 5 along its length direction. The end of the exhaust pipe 6 away from the air guide pipe 8 is fixed and connected with a connecting pipe 11. The connecting pipe 11 is rotatably connected to the connecting plate 5 and extends into the cavity 10. Driven gears 12 are installed on the connecting pipes 11. Adjacent driven gears 12 are meshed, and the driving gear is meshed with the driven gear 12 at the bottom.

[0026] Embodiment 3 is basically as attached Figures 5-6 As shown, the difference between it and embodiment 2 is that: a third installation box 14 is installed on the side of the cabinet door 1 away from the cabinet body, a second electric motor 16 is installed in the third installation box 14, a winch 15 is provided on the output shaft of the second electric motor 16, a traction rope 20 is fixedly connected to the winch 15, and the other end of the traction rope 20 penetrates the wall of the air duct 8 and extends to the inside thereof;

[0027] A sealing block 17 is provided for every two (i.e., the 2nd / 4th / 6th / 8th ... 18th from top to bottom) connecting pipes 11 in the cavity 10. A partition 18 is also provided in the cavity 10. The partition 18 is provided along the length direction of the connecting plate 5. The partition 18 is located between the sealing block 17 and the exhaust pipe 6. The connecting pipe 11 passes through the partition 18 and is rotatably connected thereto.

[0028] A sealing sheet 21 is provided for every odd number (i.e. the 1st / 3rd / 5th / 7th...19th from top to bottom) of exhaust ducts 6 in the air duct 8, and multiple sealing sheets 21 are connected by the same traction line. When the traction rope 20 in the air duct 8 is in a straightened state, the length of the traction rope 20 between two adjacent sealing sheets 21 is equal to the distance between two adjacent sealing sheets 21, and the distance between the bottommost exhaust duct 6 and the bottom of the air duct 8 is greater than the sum of the thicknesses of all the sealing sheets 21; a dust exhaust pipe 13 is connected to the bottom of the air duct 8, and the dust exhaust pipe 13 extends to the outside of the cabinet door 1.

[0029] The only difference between Example 4 and Example 2 is that temperature sensors are provided at the bottom, middle and top of the cabinet, and the temperature sensors, the blower and the first electric motor are all connected to the elevator control system in the machine room-less elevator control cabinet.

[0030] When in use, the relevant electrical components are integrated into the cabinet, and conventional programming is used to realize the elevator control system to achieve electrical signal connection with the temperature sensor, the blower, and the first electric motor, and realize the elevator control system to control the blower and the first electric motor. The control mainly includes closing and opening the blower, and controlling the wind force; closing and opening the first electric motor, and controlling the speed and direction.

[0031] During use, the temperature sensor senses the temperature changes in the control cabinet in real time and feeds this data back to the elevator control system. The elevator control system accurately adjusts the speed of the blower or the angle of the exhaust pipe 6 according to the real-time temperature data to achieve more efficient heat dissipation control.

[0032] When the temperature in the control cabinet is high, the elevator control system will start the blower and adjust the wind force of the blower according to the temperature to ensure that the electrical components are effectively cooled. At the same time, the elevator control system can also control the first electric motor to drive the exhaust pipe 6 to rotate and adjust the direction and strength of the wind force according to the temperature distribution and cooling requirements, so as to better adapt to different working environments and usage requirements.

[0033] The only difference between Example 5 and Example 3 is that temperature sensors are provided at the bottom, middle and top of the cabinet, and the temperature sensors, blower, first electric motor and second electric motor 16 are all connected to the elevator control system in the machine room-less elevator control cabinet.

[0034] When in use, the relevant electrical components are integrated into the cabinet, and conventional programming is used to realize the elevator control system to realize the electrical signal connection with the temperature sensor, the blower, the first electric motor, and the second electric motor 16, and realize the elevator control system to control the blower, the first electric motor, and the second electric motor 16. The control mainly includes the closing and opening of the blower, and the control of the wind force; the closing and opening of the first electric motor and the second electric motor 16, and the control of the speed and direction.

[0035] During use, the temperature sensor senses the temperature changes in the control cabinet in real time and feeds this data back to the elevator control system. The elevator control system accurately adjusts the speed of the blower or the angle of the exhaust pipe 6 according to the real-time temperature data to achieve more efficient heat dissipation control.

[0036] When the temperature in the control cabinet is high, the elevator control system will start the blower and adjust the wind force of the blower according to the temperature to ensure that the electrical components are effectively cooled. At the same time, the elevator control system can also control the first electric motor to drive the exhaust pipe 6 to rotate and adjust the direction and strength of the wind force according to the temperature distribution and cooling requirements, so as to better adapt to different working environments and usage requirements.

[0037] After the control cabinet has been used for a period of time, dust may accumulate in the exhaust duct 6 and the air duct 8. At this time, the elevator control system controls the first electric motor to work, and the first electric motor drives the exhaust duct 6 to rotate 180°, so that the exhaust hole 7 faces the rubber pad 4 and is blocked. Then, the elevator control system controls the second electric motor 16 to pull up the traction rope 20, so that the sealing sheet 21 on the traction rope 20 is completely separated and the sealing sheet 21 is in a corresponding position, that is, every odd number of exhaust ducts 6 (i.e., the 1st / 3rd / 5th / 7th...19th from top to bottom) has a sealing sheet 21 to block its communication path. At this time, the wind flow can only pass from top to bottom through the air duct 8, the first exhaust duct 6, the second exhaust duct 6, the air duct 8, the third exhaust duct 6, the fourth exhaust duct 6... and finally enter the bottom of the air duct 8 through the exhaust duct 6 at the bottom, thereby achieving the removal of dust in the air duct 8 and the exhaust duct 6, and the dust is finally discharged from the dust exhaust pipe 13 to the cabinet. After the dust is cleaned, the elevator control system controls the second electric motor 16 to lower the traction rope 20 , so that the sealing sheets 21 are stacked together again and located at the bottom of the air duct 8 under the action of gravity and wind.

[0038] The above is only an embodiment of the present invention, and the common knowledge such as the known specific structure and characteristics in the scheme is not described in detail here. It should be pointed out that for those skilled in the art, several deformations and improvements can be made without departing from the structure of the present invention, which should also be regarded as the protection scope of the present invention, and these will not affect the effect of the implementation of the present invention and the practicality of the patent. The scope of protection required by this application shall be based on the content of its claims, and the specific implementation methods and other records in the specification can be used to interpret the content of the claims.

Claims

1. A machine room-less elevator control cabinet, comprising a cabinet body and a cabinet door for opening and closing the cabinet body, wherein an exhaust port is provided on the cabinet body; characterized in that: A plurality of exhaust ducts connected to each other are evenly arranged on one side of the cabinet door facing the cabinet body. The plurality of exhaust ducts are arranged in sequence from top to bottom along the cabinet door, and exhaust holes are evenly arranged on the exhaust ducts. One of the exhaust ducts is connected to a blower.

2. The machine room-less elevator control cabinet according to claim 1, characterized in that: A vertical air duct and a connecting plate are provided on the side of the cabinet door facing the cabinet body, and the air duct is connected to the blower; both ends of the multiple exhaust ducts are respectively rotatably connected to the air duct and the connecting plate, the exhaust ducts are connected to the air ducts, and the exhaust ducts are connected to a power device that drives them to rotate.

3. The machine room-less elevator control cabinet according to claim 2, characterized in that: The power device includes a first electric motor and a driving gear installed on the first electric motor. The ends of the exhaust pipes away from the air guide pipe are connected to driven gears, adjacent driven gears are meshed, and the driving gear is meshed with one of the driven gears.

4. The machine room-less elevator control cabinet according to claim 3, characterized in that: A temperature sensor is arranged in the cabinet.

5. The machine room-less elevator control cabinet according to claim 4, characterized in that: A cavity is provided in the connecting plate, and a connecting pipe is connected to the end of the exhaust duct away from the air duct. The connecting pipe is rotatably connected to the connecting plate and extends into the cavity. The driven gear is installed on the connecting pipe. A sealing block is provided for every two connecting pipes in the cavity; a sealing sheet is provided for every odd number of exhaust ducts in the air duct, and multiple sealing sheets are connected by the same traction line. A second electric motor is provided on the top of the cabinet door, and a winch is provided on the output shaft of the second electric motor, and the traction rope is fixed on the winch; the blower is connected to the top of the air duct.

6. The machine room-less elevator control cabinet according to claim 5, characterized in that: The bottom of the air guide duct is connected with a dust exhaust pipe, and the dust exhaust pipe extends outside the cabinet door.

7. The machine room-less elevator control cabinet according to claim 6, characterized in that: A partition is arranged in the cavity, and the partition is located between the sealing block and the exhaust pipe. The connecting pipe passes through the partition and is rotatably connected thereto.

8. A machine room-less elevator control cabinet according to any one of claims 2 to 7, characterized in that: A rubber pad is arranged on one side of the cabinet door facing the cabinet body.

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